Forum der Gemeinschaft Firefox

I am sorry if this is not the place to ask this question. I am new to web development and have been trying to solve this issue for days. I have an ESP32 acting as an http server. I have developed web pages which have separate html, css, and javascript files. These work as expected when delivered locally (i.e. I double click on the the files), however, when they are served by the ESP the style sheet is ignored and I get the message

The stylesheet (url) was not loaded because its MIME type, “text/html”, is not “text/css”.

from Firefox debugger. The stylesheet is ignore across all browsers (Firefox, Chrome, Opera, Edge), however the error is only shown in Firefox. Normally, of course, I would expect an issue on the ESP32 side, however, the non-Firefox browsers do load the stylesheet (even tough they ignore it) and I am able to verify that the stylesheet is identical to the one served locally.

Oddly, if I open a Firefox tab and load the page, switching to developer mode causes several requests for the stylesheet and the styles are then applied. Subsequent refreshes of the page causes the style to be lost and closing/opening developer mode has no effect.

Although I have disabled javascript to try fix this problem, when javascript is loaded I get a similar message (except the javascript is loaded).

I believe I specified the MIME type because I exactly coped several examples

<meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" type="text/css" href="styles.css"> <title>My ESP32</title> Thanks for the help!

I downloaded a PDF and used Firefox to view the file. I'm trying to find key words in the PDF and I always get phrase not found. As a test I inputted a word I found in the document but find in page stated phrase not found. What am I doing wrong? I remember that I have used that feature in the past and it worked.

Good day,

I have since like more than half a year the issue that during Video playback with Firefox (no matter if private browsing or not) the screen standby time from My Debian 12 with Mate Desktop OS is functional, but it wasn't the case in past mid-term (also other website Video playback trigger that setting, while for example VLC keeps the screen alive, although the setting isn't changed).

Why does Firefox no longer surpress the energy saving option of the screen standby time; does Debian 12 (Mate Desktop) have a change or something else?

Thanks in advance!

Regrads from Germany, Johannes

Hi Community,

I am writing as recently I noticed that extreme amount of data was written on my system SSD. Here we are talking about 100-200GB of data written daily. In resource monitor I found that Firefox is writing this amount of data in its Profiles folder, but only when Facebook's main page is open. I also noticed that when only the Messenger part is open the problem goes away. Currently I symlinked the Profiles folder onto one of my HDDs so the data is being written there, however I would like to know if anyone experienced the same issue and what could be the solution for this. I completely reinstalled Firefox, my installed extensions are Adblock Plus, Enhancer for youtube and Facebook Container.

On a windows touchscreen device, it's impossible to double tap on a word in the text field to select it like regular mobile device, or even other chromium windows browsers.

Please fix this behavior.

For a few months, and I've seen this happen randomly over the last 5-10 years - pressing enter doesn't work, and sometimes dragging a new link into the empty tab space next to the tabs creates a new tab with the URL in the URL box, but not 'opened'

Does firefox have some issue with loading a web page?

I use ublock origin on default settings, and violent-monkey and stylish for scripting.. but would that disable searching google from a new tab?

Okay, I know this is a weird, super niche, and kind of ridiculous question, but who doesn't want to have their cake and eat it too? Basically, I want two browser windows open, when I open a tab, or switch a tab in one window, it does the exact same thing in the second window. Maybe someone knows if this is possible.

Since I'm sure you are scratching your head right now, I have a multi-monitor setup, two horizontal and one vertical. At any given time I have 6 to 10 windows open across the three of them, and another 10 to 15 windows minimized (and for what it is worth, currently 132 tabs, but that's about to go up after I finish this post). In some cases I work off of lists, and in all cases I have so many tabs open TreeStyleTabs is a must.

For working off a list, or for navigating between tabs, a longer vertical window is preferred; however, for working on an account or using portals a wider horizontal window is usually preferred, with some exceptions. I'd love it if I could get the best of both worlds, have the same window on two monitors, that way I can use the vertical aspect of it to reference my lists, and open/navigate between accounts, but actually work on the accounts on my horizontal window.

If this is impossible, I won't lose sleep over it, but if this is possible, omg is my productivity going to go up by like 1%, which is around 30 to 45 minutes a week, that's like over a free day of work a year.

I've used Firefox for many years. The past month or so weather radar doesn't come up on multiple weather sites, pages are slow to load or don't load, getting error codes on video's, pictures don't always load, and many other problems. I uninstalled Firefox and re-installed the current browser and I still have all these problems. I'm having to use another browser now. I run Windows 11 on my PC.

Hi. I had an issue with my wifi router yesterday and needed to reset it a couple of times. It's been fine for everything but using Firefox on my Macbook. 90% of the time, it doesn't work. I will reset the computer's connection to my WiFi, and it will load one or two tabs, but then it will stop working. The error I get is a he "Hmm. We're having trouble finding that site" error.

I reset my computer. Nada. Reset Firefox. Nada. I got rid of Hardware Acceleration. Nada. Chrome works on my laptop and Firefox works on my other devices so I do think it must be an issue with Firefox. Does anyone have any idea what I should do.

I use Firefox mainly for Youtube every day. Lately when I sit down at my Mac to view Youtube, Firefox is unresponsive. I have to close the app, and reload it this has only been happening for the past 4 or 5 weeks. I like Firefox for Youtube because it prevents ad which track me (i.e. all of them) without running afoul of Youtube's no-adblocker rule.

Could Youtube be causing the browser to die, or is it a new setting I haven't found that caused this? An explanation would be appreciated.

Hello,

I am experiencing discoloration on the top left corner of my firefox browser theme when I am in "full screen view". The discoloration disappears when I exit from full screen mode to "window view". This discoloration is happening on every theme I enable. I have attached two pictures to show what I am seeing between the full screen view and window view.

I am running Windows 11 and have a 32" curved monitor. I searched for solutions such as disabling hardware acceleration, but nothing seems to be working.

Any help would be really appreciated!

Thank you!

By using Process Explorer or Process Hacker or maybe task manager, I hope you can also verify that Firefox consumes a few GDI handles per open tab. Windows has a global limit and a per process limit of 10000. GDI objects are used for windows, for the file save dialog and also for user interface elements like buttons or lists. However many applications like Firefox draw everything themself like XUL etc. But still, Firefox consumes 3 handles for me (verified on another computer) per open tab.

If you have a lot of tabs open (for reasons not to be discussed in this topic) this can be problematic. If it reaches 10000 windows will not create more. Sometimes firefox hangs, but often Fullscreen (e.g. youtube videos) will not work and the gui will disappear. Also the context menu will not open and the save dialog cannot work and is hidden.

Am I the first to report this? I did not find anything. Can this be fixed? Can I post this to bugzilla?

Can anyone confirm this? The latest version does not fix it.

Hello, when I download PDFs and open them in the Firefox browser, only the text blocks or image blocks have a white background. The rest of the page then has a dark background. I have already checked things like dark mode etc. Do you have any suggestions for a solution?